This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X185S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC SU63-100 Standard Cylinder SU100X185S is a double-acting profile-type standard cylinder with a Ø100mm bore and 185mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X185S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X185S is a discontinued double-acting profile-type cylinder featuring a 100mm bore, 185mm stroke, and a built-in piston magnet. It delivers a robust 3927 N push force at 0.5 MPa, utilizing a 1/2 inch port and a 25mm piston rod. AirTAC replaced this end-of-line unit with the SAU100X185S, a direct alternative retaining the exact body profile, force output, and SC-series mounting hardware.
When upgrading, note the SAU replacement uses modern CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches fitted to this -S model. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU100X185S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X185S |
| Bore size | Ø100 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X185S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X185S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×185 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Drives high-tonnage stamping and forming presses requiring 3927 N of thrust at 0.5 MPa, leveraging the 100mm bore for dense metalworking tasks.
Actuates heavy-duty routing gates on high-capacity conveyor lines, utilizing the adjustable 29mm air cushions to halt the large 25mm rod smoothly.
To replace the SU100X185S, order the SAU100X185S direct equivalent, verifying your 1/2 inch port thread (PT, G, or NPT) and SC-series mounting brackets. Because this SKU includes a magnet (-S), you must migrate from the old CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family. If your application needs integrated flow control, the SAU line offers a SAUF variant with a built-in 4M solenoid valve that the SU series lacked. For sizing alternatives, a neighboring 80mm bore provides 2513 N push at 0.5 MPa, while the 100mm bore reaches 5497 N at 0.7 MPa. A plain cylinder drifts without live air—the cushion only decelerates—so install an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
Yes, the SU100X185S is discontinued. The direct replacement is the AirTAC SAU100X185S. It matches the 100mm bore, 185mm stroke, 3927 N force, 1/2 inch port, and SC-series mounting accessories, but requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
The 100mm bore uses a fixed 1/2 inch port with a 25mm rod. It generates 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa. The cushion stroke is 29 mm at each end.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X185S replacement — usually within 7-8 hours.